Kunstenaar Leonardo da Vinci state confessed to his ongebruikelijke sign techniques and materials. To the day of vandaag blijven we never ontdekkingen doen over zijn work, and the most recent onthulling concerns a mix of toxic pigments which are hidden on the penseelwork of the ‘Mona Lisa’.
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Na de mystery glimlach still a secret: other zooekers discovered toxic substances in ‘Mona Lisa’
